| | CLASS NOTES |
| 1 | DF | CONSUMABLE PRODUCTS PRODUCED BY COOLING |
| 3.1 | DF | USING ELECTRICAL OR MAGNETIC EFFECT {1} |
| 4 | DF | CHEMICAL REACTION OR SOLIDS DISSOLVING |
| 5 | DF | VORTEX TUBE, E.G., RANQUE |
| 6 | DF | GAS COMPRESSION, HEAT REGENERATION AND EXPANSION, E.G., STIRLING CYCLE |
| 7 | DF | UTILIZING FUEL AS REFRIGERANT |
| 600 | DF | CRYOGENIC TREATMENT OF GAS OR GAS MIXTURE {4} |
| 45.1 | DF | STORAGE OF SOLIDIFIED OR LIQUIFIED GAS (E.G., CRYOGEN) {12} |
| 55.5 | DF | LOW PRESSURE COLD TRAP PROCESS AND APPARATUS |
| 56 | DF | PROCESSES {28} |
| 123 | DF | SEPARATOR FOR SOLIDIFIED CONSTITUENT OF LIQUID MIXTURE {1} |
| 125 | DF | WITH INDICATOR OR TESTER {5} |
| 132 | DF | AUTOMATIC CONTROL {19} |
| 231 | DF | TIME OR PROGRAM ACTUATOR {3} |
| 235 | DF | RINK |
| 235.1 | DF | UTILIZING SOLAR ENERGY |
| 236 | DF | WITH ALTERNATELY USABLE ENERGY SOURCES |
| 237 | DF | SEPARABLE AMBULANT COOLED ENCLOSURE AND POWER OR COOLING SOURCE |
| 238.1 | DF | DISPARATE APPARATUS UTILIZED AS HEAT SOURCE OR ABSORBER {5} |
| 239 | DF | WITH VEHICLE FEATURE {5} |
| 246 | DF | DISPLAY TYPE {8} |
| 258 | DF | WITH MEANS FORMING NON-COOLED WORK SURFACE, E.G., COUNTER, TABLE, SIDEBOARD |
| 259.1 | DF | STRUCTURAL INSTALLATION {7} |
| 264 | DF | WITH ILLUMINATING OR RADIANT ENERGY MEANS |
| 265 | DF | COMPARTMENT ACCESS OR USE AND AIR BLOCKING {1} |
| 267 | DF | INTERLOCKED DIVERSE FUNCTION ELEMENTS |
| 268 | DF | VACUUMIZED CHAMBER WITH OPEN VAPOR OR GAS OUTLET {2} |
| 271 | DF | ATMOSPHERE AND SORBENT CONTACTING TYPE |
| 272 | DF | WITH MEANS PREVENTING OR HANDLING ATMOSPHERIC CONDENSATE RELATIVE TO HEAT ABSORBER {9} |
| 292 | DF | WITH MEANS FOR CHARGING CLOSED REFRIGERATION PRODUCING SYSTEM |
| 293 | DF | HAND MANIPULABLE TOOL |
| 294 | DF | CONTAINER CUTTER OR PUNCH-TYPE OPENING MEANS |
| 295 | DF | RESILIENTLY SUPPORTED POWER AND/OR HEAT REJECTING ELEMENT |
| 296 | DF | MUFFLER OR SOUND DAMPENER |
| 297 | DF | EXTERNAL SUPPORT FOR REFRIGERATOR HOUSING |
| 298 | DF | WITH REPAIR, ASSEMBLY OR DISASSEMBLY MEANS {3} |
| 303 | DF | WITH CLEANING MEANS FOR APPARATUS |
| 304 | DF | MATERIAL COOLING MEANS INCLUDING GAS-LIQUID CONTACTOR {9} |
| 317 | DF | WITH SEPARATOR-CLARIFIER FOR COOLED FLUID OR ICE-MELT {1} |
| 320 | DF | WITH COMMINUTOR OR CUTTER {1} |
| 322 | DF | DISPARATE SERIALLY ARRANGED PRODUCT TREATING APPARATUS |
| 323.1 | DF | WITH INTERNAL-COMBUSTION ENGINE {3} |
| 324.1 | DF | REVERSIBLE, I.E., HEAT PUMP {6} |
| 326 | DF | CONVERTIBLE {2} |
| 330 | DF | WITH REFRIGERANT OR COOLANT MANUFACTURING MEANS |
| 331 | DF | COMBINED |
| 332 | DF | DIVERSE SYSTEMS, E.G., ICE AND MECHANICAL {1} |
| 335 | DF | PLURAL PAIRED DIFFERENT FUNCTION REFRIGERATION PRODUCING ELEMENTS, E.G., CASCADE |
| 336 | DF | MATERIAL HANDLERS OF DIVERSE TYPES |
| 337 | DF | COOLED ARTICLE STORAGE COMPARTMENT AND COOLED ISOLATED MATERIAL HANDLER {1} |
| 340 | DF | MEANS PRODUCING SHAPED OR MODIFIED CONGEALED PRODUCT {9} |
| 371 | DF | PORTABLE, COMMODITY-CONTAINING {1} |
| 373 | DF | LIQUID CONTACTING DISCRETE COMMODITY {2} |
| 377 | DF | ARTICLE HOLDER MOUNTED ON DOOR OR PIVOTED PARTITION |
| 378 | DF | ARTICLE MOVING MEANS {4} |
| 383 | DF | MOVABLE THERMAL MEANS VARYING HEAT TRANSMISSION |
| 384 | DF | COOLER UTILIZING SOLIDIFIED GAS {4} |
| 389 | DF | WITHDRAWABLE LIQUID, E.G., DISPENSER {6} |
| 401 | DF | AIR COMPRESSOR, COOLER AND EXPANDER TYPE {1} |
| 404 | DF | GAS CONTROLLER OR DIRECTOR {5} |
| 430 | DF | INTERMEDIATE FLUID CONTAINER TRANSFERRING HEAT TO HEAT ABSORBER OR HOLDOVER {7} |
| 440 | DF | COOLED ENCLOSURE {8} |
| 467 | DF | REFRIGERATION PRODUCER {7} |
| 529 | DF | REFRIGERANT OR COOLANT, STORER OR HANDLER {1} |
| 531 | DF | MISCELLANEOUS |
| | ********************************* |
| | CROSS REFERENCE ART COLLECTIONS |
| | ********************************* |
| 900 | DF | Triple column |
| 901 | DF | Single column |
| 902 | DF | Apparatus {6} |
| 912 | DF | External refrigeration system {1} |
| 914 | DF | Magnetic or electric field |
| 915 | DF | Combustion |
| 916 | DF | Explosion reduction |
| 917 | DF | Mercury |
| 918 | DF | Halocarbon |
| 919 | DF | Isotope |
| 920 | DF | Carbon monoxide |
| 921 | DF | Chlorine |
| 922 | DF | Sulfur |
| 923 | DF | Inert gas {2} |
| 926 | DF | Gasoline |
| 927 | DF | Natural gas from nitrogen |
| 928 | DF | Recovery of carbon dioxide {2} |
| 931 | DF | Recovery of hydrogen {3} |
| 935 | DF | Olefin |
| 936 | DF | Erickson |
| 937 | DF | Cheng |
| 938 | DF | Mehra |
| 939 | DF | Partial feed stream expansion (air) {1} |
| | ****************************** |
| | DIGESTS |
| | ****************************** |
| DIG 1 | DF | Radiant cooling |
| DIG 2 | DF | Refrigerant pumps |
| DIG 5 | DF | Aircraft cooling |
| DIG 7 | DF | Vacuum plates |
| DIG 10 | DF | Tool cooling |
| DIG 11 | DF | Hydrator receptacles |
| DIG 13 | DF | Insulation |
| DIG 16 | DF | Roof and ceiling located coolers |
| DIG 17 | DF | Condenser pressure control |
| DIG 19 | DF | Ionic Thompson effect |
| DIG 20 | DF | Materials used to prevent corrosion in refrigeration system |
| DIG 21 | DF | Evaporators where refrigerant covers heat exchange coil |
| DIG 22 | DF | Free cooling |
| DIG 23 | DF | Explosive digest |
